46685421521 has 4 divisors (see below), whose sum is σ = 46707538944. Its totient is φ = 46663304100.

The previous prime is 46685421481. The next prime is 46685421547. The reversal of 46685421521 is 12512458664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46685421521 - 2¹⁸ = 46685159377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46685421421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11055545 + ... + 11059766.

It is an arithmetic number, because the mean of its divisors is an integer number (11676884736).

Almost surely, 2^46685421521 is an apocalyptic number.

It is an amenable number.

46685421521 is a deficient number, since it is larger than the sum of its proper divisors (22117423).

46685421521 is a wasteful number, since it uses less digits than its factorization.

46685421521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22117422.

The product of its digits is 460800, while the sum is 44.

The spelling of 46685421521 in words is "forty-six billion, six hundred eighty-five million, four hundred twenty-one thousand, five hundred twenty-one".